ACS Initial Assessment | Options Skills
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ACS Initial Assessment


The final training and assessment stage for a new entry gas engineer is ACS Initial Assessment.

To be eligible for ACS Initial Assessment, you must have followed an approved managed learning programme, including a mandatory on-site portfolio building stage.
In some circumstances, experienced gas engineers may also need to undertake ACS Initial Assessments. Reassessment usually arises because operatives ACS Gas Qualifications have lapsed and expired more than 12 months ago.

Upon successful completion of your ACS Initial Assessment, you will have gained the appropriate ACS qualifications to apply to become a member of the Gas Safe Register.
If you are new to the industry and thinking of starting gas training, please see our ACS Gas Training Course page for a full explanation of the route that you must follow.

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ACS Initial Assessment last for approximately two weeks. It incorporates the full domestic suite of gas appliances:

  • CCN1 – Core Gas Safety (Includes CPA 1 – Flue Gas Analysers
  • HTR1 – Gas Fires
  • CKR1 – Gas Cookers
  • CENWAT – Central heating, gas boilers and water heaters

Before you can book yourself onto the course, you must be able to satisfy strict criteria. For example, external candidates must be able to prove that they have undergone approved training. In addition, all candidates must have completed an acceptable on-site portfolio under the supervision of a registered gas engineer.

Trainees will receive 3-days refresher training ahead of the assessment. The ACS assessment process will then begin.

Under exam conditions, you will undergo a series of written assessments that include open and closed book multiple choice papers. You will also need to be assessed practically for every appliance and discipline that forms part of your ACS Initial Assessment.

Following a successful assessment, you will be ready to join the Gas Safe Register as an approved operative either in your own right or on behalf of a Gas Safe Registered company.



You will be required to provide us with:

  • Your National Insurance number
  • 2 recent colour photographs
  • Completed portfolio of evidence, supervised and signed off by a registered gas engineer.

If you come under the category of someone who has held ACS, but this expired more than 12 months ago, please be aware that training is not required before assessment.

Once you have successfully attained your ACS Gas qualifications, you may contact Gas Safe Register and apply for membership.

You must renew ACS Gas Qualifications every 5-years. This ensures that all practising gas engineers are always aware of current legislation and best practice within the industry.

Please note: Acceptance to this course is subject to you demonstrating that you have followed an approved gas learning plan. If you are a brand new entrant to the Plumbing and Gas Industry, you may consider the ACS Gas Training Course that incorporates pipework skills before you can enrol on this course.

If you are an existing Gas Fitter, you will be able to undertake the ACS Renewal Course.

Up to 31st December 2020, Regulated qualifications and UKAS Accredited certificates of competence issued in the UK were widely recognised by other EU member states. However, since the UK’s withdrawal from the EU, individual member states that previously recognised a UK qualification may now no longer do so. Learners undertaking qualifications on the basis that it is recognised by an EU member state should, in the first instance, make enquiries with the relevant bodies in that Country to confirm its recognition status.

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Options Skills
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Amy KeayAmy Keay
17:49 14 Jan 22
Option Skills - BirminghamI’m not usually a person who will write feedback on Google, but I am someone who will give credit where credit is due.I found myself in a position where I had been made redundant, and id had a conversation with someone who’d decided to go on a gas course and do this through Option Skills. After speaking with the individual, I decided that id give this a go myself to give myself a trade.I can honestly say that it is better than anything that id ever expected. Iv always been someone who had worked in finance, so doing this was new to me and I was a bit apprehensive with how it would go.I have nothing but praise to the employees at Option Skills, and I feel that they are a credit to the company.Andrew, Leanne and Shaun have been the people taking the training sessions, and what incredible people they are.They are extremely knowledgeable and helpful in every way possible with an extra desire to wanting to see you achieve.I have done the course for 8 weeks, and the knowledge I have picked up already is immense.If you are someone looking to get into the gas trade, I would highly recommend Option Skills as you will not be disappointed.Carl Evans
Samuel LauSamuel Lau
19:46 05 Jan 22
Although this course is intense and you will find yourself picking up a lot of information in a short space of time, Options Skills are the best way to get into the trades if you are a fast learner and are willing to work hard. The trainers are excellent (John, Steve, Thomas) and they will help you wherever they can, however be prepared to put in the work yourself in the evenings and weekends to revise and pass exams. Josh and James from the recruitment team were a joy to work with, they work tirelessly to find us all placements to start working in the industry while you complete the portfolio part of the course. I just finished the Electrical 6 week course and the lads found me a job in Birmingham city centre. With a number of exams left to do and portfolio to complete after you finish the 6 weeks in-centre, you can expect the total time to reach being qualified to be around 1-2 years.
beau clarkebeau clarke
08:12 24 Nov 21
Really recommend this training centre. Just finished a 6 week electrical installation course. Tutors Colin and John were great, they were knowledgeable professional and very supportive throughout. Josh and his recruitment team managed to find me a job in the industry starting the Monday after I finished the training. 5 stars all round from me. Thank you to everybody at option skills and keep up the good work!!!
Tom McdonaldTom Mcdonald
17:52 03 Nov 21
Great service from start to finish. Course is very well run & enjoyable. Prepares you for the world of electrics, with constant support from trainers Colin or John when needed. After the course is finished Josh and his team work around the clock to help you get a foot in the door at an electrical company. Constant support & updates, giving you confidence in what can be a hard process. Making it very smooth and simple
Kiril IvanovKiril Ivanov
07:37 14 Oct 21
John, I would like to express how much I enjoyed your classes. Thank you for making your classes special and interesting and enjoying with your innovative teaching.Thank you, for all the fun activities you included in the class to enhance learning, proving the fact that learning can indeed be fun.Great Teachers never try to be the best teachers. They simply bring out the best in their students. You definitely are one and I want you to know this. Thank you for everything.

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